Thanks, Lab! Thanks, Adam. They run from 25 up to 60 bucks for the death stars. It really depends on how many/what kinds of plants I need to use, as well as how much the glass costs.
Awesome, Andy! Which liverworts are you growing? I have a couple diff kinds of riccardia, which are all doing really well.
Finally finished this one tonight. Using a layer of gravel on the bottom was not working out for keeping in enough moisture, so I went with a clay mix based on mellow's suggestion. I'm interested to see how this one grows in, so will probably hold it back for a few weeks before putting it on sale. I actually smeared some clay on the driftwood, and tried to push some riccardia into it. If it actually takes to the wood in this fashion, I will be stoked.